· Director Of Networking Partnerships, Texas Advanced Computing Center (TACC)2022–
· Director Of International Networking, Indiana University2013–2022
· Future Technologies Senior Program Officer, IEEE Computer Society2012–2013
· Program Director, National Science Foundation2009–2012
· Information Systems Associate, Woods Hole Oceanographic Institution2009–2012
· Systems Architect, Marine Biological Laboratory2008–2008
· Expert Consultant, National Science Foundation2008–2009
· EInfrastructure Policy Advisor, JISC2005–2006
· Visiting Researcher, UK National eScience Centre2004–2007
· Scientist, Argonne National Laboratory2001–2008
· Assistant Professor, Northwestern University1999–2003
· MS, UC San Diego1992–1994
· PhD, UC San Diego1992–1999
· BA, Vassar College1988–1992